Someone help and i will love you forever!

One integer is 5 more than another. their product is 104. find the integers

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Math it's appreciated. (picture provided)